T
tinytim
Banging noise when boiler cycles running central heating, also when drawing hot water when ch is on on switching off hot tap after a few seconds there is a bang and a whoosh as though the boiler is firing even though it is already firing ie flame light is on and making a firing noise, water pressure system and main OK, plenty of heat in radiators and hot tap, soft water area, last service a year ago. Please advise?